7-11 July 2014
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=16&confId=34"><font color=#0000ff>SAIP2014 Proceedings published on 17 April 2015</font></a>

Surface Brillouin scattering studies on annealed ion-modified CVD diamond

8 Jul 2014, 17:10
1h 50m
D Ring ground level

D Ring ground level

Board: A.241
Poster Presentation Track A - Division for Physics of Condensed Matter and Materials Poster1

Speaker

Mr Isaac Motochi (Unversity of the Witwatersrand)

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

Yes

Abstract content <br> &nbsp; (Max 300 words)<br><a href="http://events.saip.org.za/getFile.py/access?resId=0&materialId=0&confId=34" target="_blank">Formatting &<br>Special chars</a>

Surface Brillouin scattering studies show a transition from a hard diamond-like damaged material to a softer material after annealing at 500 degrees Celsius and 800 degrees Celsius depending on the local damage density. CVD diamonds were implanted with carbon ions in single and multiple energy regimes to a maximum energy of 150 keV and doses of 1.5 x 1016 and 1.0 x 1016 ions/cm squared, respectively. Surface Brillouin scattering studies were then carried out to study the transformation of the damaged near surface region due to heat treatment at different annealing temperatures. Surface acoustic modes are used to study the evolution. Raman studies was also used to show the structural changes occurring due to the annealing effects on the sample surface.

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD)?

PhD

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

No

Main supervisor (name and email)<br>and his / her institution

Mervin Naidoo

Primary author

Mr Isaac Motochi (Unversity of the Witwatersrand)

Co-authors

Dr Bhekumusa Mathe (University of the Witwatersrand) Dr Mervin Naidoo (University of the Witwatersrand) Prof. Trevor Derry (University of the Witwatersrand)

Presentation Materials

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